The Cerve;lo S5 Frameset is the pinnacle of aerodynamic road performance, built for riders who demand every possible advantage in speed. Proven at the highest levels of racing, the S5 has earned its reputation as one of the fastest road bikes ever created. The latest generation builds on that legacy with measurable aerodynamic improvements, delivering 6.3 watts of savings over its predecessor while simultaneously reducing weight. Whether attacking in a race, chasing personal records, or maximizing efficiency on every ride, the S5 is engineered to convert power into speed with unmatched effectiveness. Much of the performance gain comes from a completely refined front end, featuring deeper fork legs and head tube profiles that optimize airflow across the bike. The new Cerve;lo HB19 one-piece carbon cockpit further enhances aerodynamic efficiency with its innovative Plus-Four design, positioning the hoods 4cm narrower than the drops to encourage a faster riding position while preserving stability and control. Despite its deeper aerodynamic tube shapes, the S5 is 124 grams lighter than the previous generation thanks to advanced carbon layup refinements and optimized hardware. With fully integrated cable routing, race-proven handling, and clearance for modern high-volume road tires, the S5 Frameset represents the cutting edge of aerodynamic road cycling. Key Features Frame - Cervelo All Carbon Weight - 4.99 lbs Cockpit - Cerve;lo HB19 Cockpit